forked from OSchip/llvm-project
53 lines
2.2 KiB
ArmAsm
53 lines
2.2 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
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// RUN: ld.lld %t --shared -o %t.so
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// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t.so | FileCheck %s
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// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t.so | FileCheck %s -check-prefix=PLT
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// REQUIRES: arm
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.syntax unified
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.global sym1
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.global elsewhere
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.weak weakref
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sym1:
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b.w elsewhere
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b.w weakref
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// Check that we generate a thunk for an undefined symbol called via a plt
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// entry.
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// CHECK: Disassembly of section .text:
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// CHECK-NEXT: sym1:
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// CHECK-NEXT: 1000: 00 f0 02 b8 b.w #4 <__ThumbToARMV7PILongThunk_elsewhere>
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// CHECK-NEXT: 1004: 00 f0 06 b8 b.w #12 <__ThumbToARMV7PILongThunk_weakref>
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// CHECK: __ThumbToARMV7PILongThunk_elsewhere:
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// CHECK-NEXT: 1008: 40 f2 20 0c movw r12, #32
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// CHECK-NEXT: 100c: c0 f2 00 0c movt r12, #0
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// CHECK-NEXT: 1010: fc 44 add r12, pc
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// CHECK-NEXT: 1012: 60 47 bx r12
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// CHECK: __ThumbToARMV7PILongThunk_weakref:
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// CHECK-NEXT: 1014: 40 f2 24 0c movw r12, #36
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// CHECK-NEXT: 1018: c0 f2 00 0c movt r12, #0
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// CHECK-NEXT: 101c: fc 44 add r12, pc
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// CHECK-NEXT: 101e: 60 47 bx r12
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// PLT: Disassembly of section .plt:
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// PLT: $a:
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// PLT-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!
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// PLT-NEXT: 1024: 04 e0 9f e5 ldr lr, [pc, #4]
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// PLT-NEXT: 1028: 0e e0 8f e0 add lr, pc, lr
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// PLT-NEXT: 102c: 08 f0 be e5 ldr pc, [lr, #8]!
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// PLT: $d:
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// PLT-NEXT: 1030: d0 0f 00 00 .word 0x00000fd0
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// PLT: $a:
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// PLT-NEXT: 1034: 04 c0 9f e5 ldr r12, [pc, #4]
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// PLT-NEXT: 1038: 0f c0 8c e0 add r12, r12, pc
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// PLT-NEXT: 103c: 00 f0 9c e5 ldr pc, [r12]
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// PLT: $d:
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// PLT-NEXT: 1040: cc 0f 00 00 .word 0x00000fcc
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// PLT: $a:
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// PLT-NEXT: 1044: 04 c0 9f e5 ldr r12, [pc, #4]
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// PLT-NEXT: 1048: 0f c0 8c e0 add r12, r12, pc
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// PLT-NEXT: 104c: 00 f0 9c e5 ldr pc, [r12]
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// PLT: $d:
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// PLT-NEXT: 1050: c0 0f 00 00 .word 0x00000fc0
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